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A tmd device for controlling time-varying structural vibration

A technology of structural vibration and controller, applied in the direction of vibration suppression adjustment, non-rotational vibration suppression, spring/shock absorber, etc., can solve the problem that TMD frequency does not have time variation, etc. The best vibration effect

Inactive Publication Date: 2019-03-22
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing TMD frequency does not have time variation, realize the vibration control in the vertical direction of the structure, and achieve the purpose of real-time control

Method used

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  • A tmd device for controlling time-varying structural vibration
  • A tmd device for controlling time-varying structural vibration
  • A tmd device for controlling time-varying structural vibration

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Embodiment Construction

[0016] A TMD device for controlling time-varying structural vibration of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0017] Such as figure 1 As shown, a TMD device for controlling time-varying structure vibration of the present invention includes a base plate 9, a first conductor plate 1, a second conductor plate 2, a third conductor plate 3 and a plurality of permanent magnets 4, and the first conductor plate 1 , the second conductor plate 2 and the third conductor plate 3 are respectively connected to the base plate 9 and are perpendicular to the base plate 9, one end of the first conductor plate 1 is connected to the second conductor plate 2, the other end is connected to the third conductor plate 3, and the permanent magnet 4 is fixed Set on the bottom plate 9, the first conductor plate 1, the second conductor plate 2 and the third conductor plate 3 are arranged around the permanent magnet 4; a stiffness ...

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Abstract

The invention provides a TMD device controlling the vibration of a time varying structure. The TMD device comprises a bottom plate, a first conductor plate, a second conductor plate, a third conductor plate and permanent magnets. The first conductor plate, the second conductor plate and the third conductor plate are perpendicular to the bottom plate. One end of the first conductor plate is connected with the second conductor plate, and the other end of the first conductor plate is connected with the third conductor plate. The permanent magnets are fixedly arranged on the bottom plate. The permanent magnets are surrounded by the first conductor plate, the second conductor plate and the third conductor plate. A rigidity adjusting device is arranged between the second conductor plate and the third conductor plate. A mass block and springs are arranged in the rigidity adjusting device. The mass block is connected with the second conductor plate and the third conductor plate through the springs. The rigidity adjusting device can automatically adjust the inherent frequency of a TMD. By means of the TMD device controlling the vibration of the time varying structure, the problem that time varying cannot be achieved on the frequency of an existing TMD can be solved, vibration control over the structure in the perpendicular direction is achieved, and the purpose of real-time control is achieved.

Description

technical field [0001] The invention relates to the technical field of vibration reduction control, in particular to a TMD device for controlling time-varying structural vibration. Background technique [0002] A tuned mass damper (TMD) is a control device that was earlier used in passive control of structures. This kind of passive control device has its irreplaceable control advantages, but only when its natural frequency is tuned to the same or close to the natural frequency of the controlled structure, TMD will produce a better vibration reduction effect. Therefore, it is very necessary to accurately grasp the natural frequency of the structure before designing the TMD. However, in actual engineering, due to the influence of various random factors, it is very difficult to accurately determine the natural frequency of the structure, and after the TMD device is installed on the controlled structure, its natural frequency will drift to a certain extent, which is undoubtedly...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F15/03
CPCF16F15/035
Inventor 朱前坤南娜娜张琼杜永峰程选生李喜梅李万润
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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